KR20030097440A - Apparatus for telling position by using gps and method thereof - Google Patents

Abstract

PURPOSE: An apparatus and a method for announcing a location by using a GPS(Global Positioning System) are provided to display approach to a selected location on an LCD screen and announce it through a speaker when a user moves to the selected location by using location information registered in a wireless terminal in which a GPS receiver is installed. CONSTITUTION: A user selects a location announcement function through the menu function of his/her portable phone(S201). Then the user inputs a desired target position to an MSM(S201). The MSM judges whether the map data containing the inputted target position exist in a memory part(S203). In case that the map data containing the inputted target position exist in the memory part, the MSM reads the map data from the memory part and calculates the distance and direction from the present location to the target position by using the map data containing the target position and the location appointment data inputted from a GPS receiver(S204). Then the MSM outputs the calculated distance and direction to the user through an LCD part or a speaker(S205).

Description

Apparatus and method for location notification using JPPS {APPARATUS FOR TELLING POSITION BY USING GPS AND METHOD THEREOF}

The present invention relates to a location notification device and method using a WPS, and more particularly, to register a location of a terminal on a wireless terminal capable of receiving a GPS (Global Positioning System) signal, and using the registered location information The present invention relates to a location notification apparatus and method using a GPS that informs an approximate distance from a current location by selecting a location and informing whether the location is close to the area while moving to the area.

In general, a global positioning system (GPS) is a global radio navigation satellite system developed and promoted by the Department of Defense (DOD), and is a medium and high-orbit navigation satellite system, NAVSTAR (Navigation System with Time And). It is also called NAVSTAR / GPS in the sense of a system using Ranging. As shown in the following figure, the system has a total of 24 navigating satellites and ground control stations and users who manage four satellites, each of which was launched on six circular orbits with an altitude of approximately 20,000 km, a period of about 12 hours, and an orbital inclination of 55 degrees. It consists of a mobile station of. Each satellite is equipped with an atomic clock. Since the system is arranged so that at least four satellites are in the field of view at all times on earth, the user selects four of these satellites and receives visual signals from them to measure each distance. Since the positions of the four satellites are known, this measurement shows the user's three-dimensional position of latitude, longitude, and altitude and the visual deviation of the field of view. The transmission frequency from the satellite is two waves of L1 (1,575.42 MHz) and L2 (1,227.6 MHz), and these two waves compensate for ionospheric delay. The navigation signal includes a navigation information of 50bps and is a phase shift modulated (PSK) signal spread spectrum modulated with a pseudo noise code (PN code). There are two kinds of pseudo noise codes, P code (precision code) and C / A code (clear and acquisition code). The P code is 10.23 Mbps, and the period is 1 week for precise positioning. The C / A code is 1.023 Mbps and the period is about 1 millisecond (ms). These pseudo-noise codes can be used to decode navigation signals or measure distances between satellites and receiving stations. L1 includes a P code and a C / A code, and L2 includes only a P code. Currently, a code pattern is disclosed for private use, but the P code is secret. It is known that the position measurement accuracy by C / A code is within 100m of nominal, and the precision by P code is within 16m of nominal. It was originally built for the positioning of military vehicles, ships and aircraft. Nowadays, it can be used by civilians, so it is used for navigation devices installed in automobiles, navigation devices such as ships and helicopters. It is also used for remote operation of unmanned construction and earthquake measurement systems for earthquake forecasts. Recently, the navigation system in combination with geographic information contained in a read-only compact disc storage device (CD-ROM) can provide relatively low cost, and the market is rapidly expanding.

Conventionally, such a GPS system has been mainly used in a car navigation system, and the car navigation system includes: a GPS transceiver for performing transmission and reception with a GPS satellite; A memory unit for storing a digital map; And a processor configured to provide information regarding a current location and a target location according to the digital map of the memory unit and the location information received from the GPS transceiver. In addition, in order for the mobile phone user to know the location, the mobile phone user connects with the helper, and afterwards, the helper directly informs the mobile phone user of the current road situation.

However, the above-described conventional location notification method has a problem that it is economically expensive because it is large and expensive.

In order to solve the above problems, the present invention, by using the location information registered in the wireless terminal equipped with a GPS receiver, when moving to a selected location to display the proximity to the selected location on the LCD screen, through a speaker, etc. It is an object of the present invention to provide a location notification device and method using the GPS to inform this.

1 is a block diagram showing a location notification device using GPS according to an embodiment of the present invention,

2 is a flowchart illustrating a location notification method using GPS according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: RF transceiver 120: MSM

130 memory unit 140 GPS receiver

150: LCD display unit 160: speaker unit

In order to achieve the above object, the position notification device using the GPS of the present invention, a mobile phone having a GPS reception function, RF transceiver for receiving map information from the base station in a high frequency format; An MSM that receives map information from the RF transceiver, outputs a control signal, reads map data including a target point, and calculates a distance and a direction to a target point based on the map data and the current position; A memory unit for storing map information received from the MSM as map data, and receiving the control signal from the MSM and outputting corresponding data among the stored map data to the MSM; A GPS receiver for outputting a received positioning signal from a GPS satellite to the MSM; And a display unit to the user, the distance and direction from the MSM to the target point received.

In addition, the location notification method using the GPS of the present invention to achieve the above object, if the location notification function is selected through the menu function of the mobile phone, receiving the current location through the GPS method; Inputting a target point; Determining whether map data including a target point exists in the internal memory; If the map data including the target point exists in the memory, calculating a distance or direction from the current position to the target position through the map data and the positioning information including the target point; And displaying the calculated distance or direction from the current position to the target position.

Hereinafter, the most preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily implement the technical idea of the present invention. .

1 is a block diagram showing a location notification device using GPS according to an embodiment of the present invention, the location notification device using the GPS of the present invention, RF transceiver 110, MSM 120, memory unit 130 ), A GPS receiver 140, an LCD display unit 150, and a speaker unit 160.

The RF transceiver 110 receives the map information selected by the user from the base station in a high frequency format, and outputs the map information to the MSM 120 which will be described later.

In addition, the MSM 120 receives the map information from the RF transceiver 110 and outputs it to the memory unit 130, which will be described later, and outputs a control signal to the memory unit 130 to be described later to include a target point. The map data is read from the memory unit 130 to be described later, and the position of the current mobile phone terminal is recognized through the positioning signal received from the GPS receiver 140 to be described later, the map data including the target point and the current location. Converts the video signal to an LCD display unit 150 to be described later, calculates the distance and direction to the target point based on the map data and the current position, and converts it to an audio signal to the speaker unit 160 to be described later. It plays a role of outputting.

Meanwhile, the memory unit 130 stores the map information received from the MSM 120 as map data, and receives the control signal from the MSM 120 and stores corresponding data among the stored map data in the MSM 120. It serves to output.

In addition, the GPS receiver 140 serves to output the received positioning signal from the GPS satellites to the MSM 120.

On the other hand, the LCD display unit 150, and serves to display the image signal received from the MSM 120 to the user.

In addition, the speaker unit 160 serves to display a voice signal received from the MSM 120 to the user.

Referring to the operation of the location notification device using the GPS of the present invention described above are as follows.

First, a user inputs a target point to go through a key input unit (not shown). The MSM 120 reads map data including a target point from the memory unit 130 according to a user's input. Here, when the map data including the target point does not exist in the memory unit 130, the map information is requested to a service center (not shown) through the RF transceiver 110. Thereafter, the service center provides the corresponding map information to the MSM 120 through the RF transceiver 110 according to the request, and the MSM 120 stores the map information in the memory unit 130 and then the target point. This is used as the included map data. Subsequently, the MSM 120 calculates the distance and direction from the current position to the target position through the map data including the target point and the positioning information received from the GPS receiver 140, and then calculates the distance from the current position to the target position. It is displayed to the user through the speaker unit 160.

2 is a flowchart illustrating a location notification method using GPS according to an embodiment of the present invention.

First, the user selects the location notification function through the menu function of the mobile phone (S201).

Thereafter, the user inputs a target point to go to the MSM 120 through the key input unit (S202).

Next, the MSM 120 determines whether the map data including the target point according to the user's input exists in the memory unit 130 (S203).

If the map data including the target point exists in the memory unit 130, the MSM 120 reads the map data including the target point from the memory unit 130 and includes the target point. The distance and direction from the current position to the target position are calculated through the map data and the positioning information received from the GPS receiver 140 (S204).

If the map data including the target point does not exist in the memory unit 130, the MSM 120 requests the map information from the service center through the RF transceiver 110, and the service center according to the request. The map information is provided to the MSM 120 through the RF transceiver 110, and the MSM 120 stores the map information in the memory unit 130 and then calculates the distance and direction from the current location to the target location. The process proceeds to step S206.

Thereafter, the calculated distance and direction from the current position to the target position are displayed to the user through the LCD display unit 150 or the speaker unit 160 (S205).

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawings shown.

The present invention, by using the location information registered in the wireless terminal equipped with a GPS receiver, when moving to a selected location on the LCD screen to indicate whether the selected location is close, and informs it through a speaker, the mobile phone user's travel way In this case, there is an advantage in that the direction and distance of the region can be grasped so that the target point can be easily reached.

Claims (5)

In a mobile phone having a GPS reception function, An RF transceiver for receiving map information in a high frequency format from a base station; An MSM that receives map information from the RF transceiver, outputs a control signal, reads map data including a target point, and calculates a distance and a direction to a target point based on the map data and the current position; A memory unit for storing map information received from the MSM as map data, and receiving the control signal from the MSM and outputting corresponding data among the stored map data to the MSM; A GPS receiver for outputting a received positioning signal from a GPS satellite to the MSM; And Display unit for the distance and direction from the MSM to the target point received from the user Position notification device using GPS, characterized in that it comprises a. The method of claim 1, The display unit is an LCD display unit for displaying the distance and direction as an image. Location notification device using GPS, characterized in that. The method of claim 1, The display unit is a speaker unit that displays the distance and direction by voice. Location notification device using GPS, characterized in that. If the location notification function is selected through a menu function of the mobile phone, receiving a current location through a GPS method; Inputting a target point; Determining whether map data including a target point exists in the internal memory; If the map data including the target point exists in the memory, calculating a distance or direction from the current position to the target position through the map data and the positioning information including the target point; And Displaying the distance or direction from the calculated current position to the target position Location notification method using a GPS, characterized in that it comprises a. The method of claim 4, wherein If the map data including the target point does not exist in the memory, the service center receives the map information and calculates the distance and direction from the current position to the target position. Location notification method using a GPS, characterized in that it comprises a.